Peanuts have a certain calcium tonic effect. Peanuts, commonly known as groundnuts, have the effect of nourishing and longevity, and are known as the fruit of immortality. Peanuts and soybeans as nutritious, is a high-protein oil crops, protein content can be as high as about 30%, the nutritional value can be comparable to animal foods, such as eggs, milk, lean meat, etc., and easy to be absorbed by the body to use. In addition, peanuts contain eight essential amino acids, rich fat, lecithin, vitamin A, vitamin B, vitamin E, vitamin K and calcium, phosphorus, iron and other elements, so regular consumption of peanuts, can play a tonic effect, but also to supplement the role of trace elements and vitamins. However, if the baby is deficient in calcium, you can not simply rely on dietary supplements, it is recommended that drug supplementation with vitamin D.